Pith Number

pith:SG55MHM3

pith:2012:SG55MHM3U2YL6BVJWHTHPEE3G6

not attested not anchored not stored refs pending

Deformations of Hyperbolic Cone-Structures: Study of the Collapsing case

Alexandre Paiva Barreto

arxiv:1201.2923 v1 · 2012-01-13 · math.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SG55MHM3U2YL6BVJWHTHPEE3G6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:04:42.908662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91bbd61d9ba6b0bf06a9b1e677909b3793546a7466101f4a60dbdd0e8f1b7789

Aliases

arxiv: 1201.2923 · arxiv_version: 1201.2923v1 · doi: 10.48550/arxiv.1201.2923 · pith_short_12: SG55MHM3U2YL · pith_short_16: SG55MHM3U2YL6BVJ · pith_short_8: SG55MHM3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SG55MHM3U2YL6BVJWHTHPEE3G6 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 91bbd61d9ba6b0bf06a9b1e677909b3793546a7466101f4a60dbdd0e8f1b7789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c47f19ec47fca3576aba9da71d121740f13b95e63d77030dd6929ea41a4c21f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-01-13T19:34:20Z",
    "title_canon_sha256": "bfd6bacfcf658b272f28d85a97316f515b010a73b80b87594e3d1707ff03b07a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2923",
    "kind": "arxiv",
    "version": 1
  }
}